Tamás Bárdi
Speech F0 estimation with enhanced voiced-unvoiced classification
Pitch detectors for speech signal can only work correctly if the fundamental frequency estimation is linked with a reliable voiced-unvoiced decision. A pitch detection algorithm is presented with an enhanced voicing detection method, which gives less error rate than concurrent methods. This pitch detector is based on the well-known autocorrelation method with some modification. The robustness of the algorithm on voicing decision was evaluated over a database of speech recorded together with a laryngograph signal.